@article{CMUC_1991__32_4_a3,
     author = {Balanda, L. and Viszus, E.},
     title = {On {Liouville} theorem and the regularity of weak solutions to some nonlinear elliptic systems  of higher order},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {615--625},
     publisher = {mathdoc},
     volume = {32},
     number = {4},
     year = {1991},
     mrnumber = {1159808},
     zbl = {0773.35017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1991__32_4_a3/}
}